Have you tried to make projects with traditional Arduino board? Although these boards have better compatibility, but when you want to make volume production, you'll find that these boards are lacking of pins, low-performance or not compatible with 5V operating voltage. And most of them are very expensive. Luckily, Bluno M0 is a great soul solves all.

The Bluno M0 combines a bluetooth module and ARM microcontroller in one Arduino-compatible board with lots of other features. This arduino board is recommended for advanced users who want to dig deeper into BLE, I2S or 32-bit computing in general.

NOTE:
• Different from official Arduino M0, Bluno M0 adopts a unique chip solution which should be installed independently. It supports Windows, Linux and MAC.
• The default IDE version should be 1.6.0 and above, other versions should be modified according to FAQ instructions.

FEATURES

Arduino IDE Compatible

32-Bit 72MHz Cortex-M0

Supports 5V reference voltage

Supports standard IIS audio interface

Support USB and dual physical hardware serial port

Compatible with Leonardo pin packages

Support wireless programming upload code

Support Windows /Linux /Mac

SPECIFICATION

Microcontrollers: Nuvoton NUC123ZD4AN0 (Cortex M0)

Clock Speed: 72MHz

Operating Voltage: 5V

Recommended Input Voltage: 7-12V

Limited input voltage: 6-20V

Digital I/O Pins: 31

Analog input Pins: 6

External Interrupt: 2 (D2, D3)

SRAM: 20K

Flash: 68K (of which 12 KB used by bootloader, 55K used by the user code area, 1K used by EEPROM)